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Table 4 Sensitivity analysis for 269 participants with non-pathology-based diagnoses or digestive diseases other than cholangiocarcinoma

From: Is exposure to tobacco associated with extrahepatic cholangiocarcinoma epidemics? A retrospective proportional mortality study in China

% changed to non-cases

Number of cases changed

RR (95% CI)* for exposure to tobacco

Passive

Active

Passive & Active

All

100

269

1.34 (0.81–2.21)

1.38 (0.90–2.12)

2.52 (1.58–4.00)

1.39 (1.00–1.93)

90

243

1.26 (0.79–2.00)

1.39 (0.93–2.04)

2.53 (1.65–2.88)

1.40 (1.03–1.90)

80

215

1.39 (0.90–2.14)

1.29 (0.88–1.87)

2.52 (1.70–3.76)

1.41 (1.06–1.88)

70

188

1.43 (0.97–2.10)

0.99 (0.70–1.40)

1.91 (1.30–2.82)

1.18 (0.91–1.54)

60

160

1.51 (1.05–2.18)

0.96 (0.69–1.33)

1.97 (1.37–2.84)

1.21 (0.94–1.55)

50

135

1.42 (1.00–2.03)

1.15 (0.83–1.58)

2.27 (1.61–3.31)

1.33 (1.04–1.70)

40

108

1.14 (0.82–1.59)

1.01 (0.75–1.37)

1.87 (1.34–2.60)

1.13 (0.90–1.41)

30

81

1.16 (0.84–1.60)

1.08 (0.81–1.44)

1.95 (1.42–2.69)

1.18 (0.95–1.47)

20

54

1.19 (0.87–1.62)

1.01 (0.76–1.34)

1.95 (1.44–2.65)

1.17 (0.94–1.44)

10

27

1.20 (0.89–1.63)

1.07 (0.82–1.40)

1.92 (1.42–2.58)

1.21 (0.99–1.49)

  1. *Adjusted for age, gender, urban or rural residence, ethnicity, education, and pathology-based or non-pathology-based diagnosis (Model 2)